NOx Emissions and Performance of a Single-cylinder Diesel Engine Fueled with Emulsified Biodiesel Blends PDF Download
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Author: Jason Allen Davis
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 190
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Book Description
Author: Jason Allen Davis
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 190
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Book Description
Author: Basha, J. Sadhik
Publisher: IGI Global
ISBN: 1799825418
Category : Technology & Engineering
Languages : en
Pages : 298
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Book Description
In today’s global context, there has been extensive research conducted in reducing harmful emissions to conserve and protect our environment. In the automobile and power generation industries, diesel engines are being utilized due to their high level of performance and fuel economy. However, these engines are producing harmful pollutants that contribute to several global threats including greenhouse gases and ozone layer depletion. Professionals have begun developing techniques to improve the performance and reduce emissions of diesel engines, but significant research is lacking in this area. Recent Technologies for Enhancing Performance and Reducing Emissions in Diesel Engines is a pivotal reference source that provides vital research on technical and environmental enhancements to the emission and combustion characteristics of diesel engines. While highlighting topics such as biodiesel emulsions, nanoparticle additives, and mathematical modeling, this publication explores the potential additives that have been incorporated into the performance of diesel engines in order to positively affect the environment. This book is ideally designed for chemical and electrical engineers, developers, researchers, power generation professionals, mechanical practitioners, scholars, ecologists, scientists, graduate students, and academicians seeking current research on modern innovations in fuel processing and environmental pollution control.
Author: P. Venkateswara Rao
Publisher:
ISBN: 9782522248054
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
A single cylinder diesel engine is an internal combustion engine where fuel is ignited by compressing air in a combustion chamber. In recent years, there has been growing interest in using alternative fuels in diesel engines to reduce environmental impact and promote sustainability. One such alternative fuel is coconut biodiesel, which is derived from coconut oil and has been found to have good combustion properties. To enhance the performance and reduce the emissions of coconut biodiesel, researchers have explored the use of fuel additives. These additives can improve the properties of the fuel and enhance its combustion characteristics. The use of additive blends with coconut biodiesel has shown promise in reducing emissions and improving engine performance. Studies have investigated the effects of using different types and concentrations of additives in coconut biodiesel blends, such as antioxidants, surfactants, and cetane improvers. These studies have shown that the use of additive blends can reduce emissions of pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), and particulate matter (PM), while also improving engine power and efficiency. The use of coconut biodiesel and additive blends in diesel engines has several advantages, including the use of a renewable and locally sourced fuel source, reduced emissions of harmful pollutants, and improved engine performance. However, further research is needed to optimize the use of these fuels in diesel engines and ensure their long-term viability and sustainability. Overall, the use of single cylinder diesel engines with coconut biodiesel and additive blends shows promise as a more sustainable and environmentally friendly alternative to traditional diesel fuels. Particulate matter (PM) or smoke emission and oxides of nitrogen (NOx emissions) are the two important harmful emissions in diesel engine. Fuel companies and the researchers around the world are devoted to reduce such emissions with different ways. Fuel modification, modification of combustion chamber design and exhaust after treatments are the important means to alleviate such emissions. In this context, engine researchers are hunting for suitable alternative fuels to the diesel engine. Among different alternative fuels, oxygenated fuel is a kind of alternative fuel. Diethylene glycol dimethyl ether (DGM), dimethoxy methane (DMM), dimethyl ether (DME), diethyl ether (DEE), methyl tertiary butyl ether (MTBE), dibutyl ether (DBE), dimethyl carbonate (DMC), methanol, ethanol and Triacetin (anti-knocking agent for gasoline) have played their role to reduce diesel emissions. These fuels can either be used as a blend with conventional diesel/biodiesel fuel or as an additive or as a neat fuel. The presence of oxygen in the fuel molecular structure plays an important role to reduce PM and other harmful emissions from diesel engine.
Author: Breda Kegl
Publisher: Springer Science & Business Media
ISBN: 1447153251
Category : Technology & Engineering
Languages : en
Pages : 265
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Book Description
With a focus on ecology, economy and engine performance, diesel engines are explored in relation to current research and developments. The prevalent trends in this development are outlined with particular focus on the most frequently used alternative fuels in diesel engines; the properties of various type of biodiesel and the concurrent improvement of diesel engine characteristics using numeric optimization alongside current investigation and research work in the field. Following of a short overview of engine control, aftertreatment and alternative fuels, Green Diesel Engine explores the effects of biodiesel usage on injection, fuel spray, combustion, and tribology characteristics, and engine performance. Additionally, optimization procedures of diesel engine characteristics are discussed using practical examples and each topic is corroborated and supported by current research and detailed illustrations. This thorough discussion provides a solid foundation in the current research but also a starting point for fresh ideas for engineers involved in developing/adjusting diesel engines for usage of alternative fuels, researchers in renewable energy, as well as to engineers, advanced undergraduates, and postgraduates.
Author: David Henry Nelson
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 191
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Book Description
Author's abstract: Bio-fuels and emissions are of great concern today with limited petroleum resources, and increasingly strict regulations by the Environmental Protection Agency on combustion emissions. In this study, a single cylinder, naturally aspirated diesel engine with a separate three vortex combustion chamber is used to investigate combustion and emissions of low sulfur diesel with comparison to blends of biodiesel with diesel. The separate combustion chamber is designed to help reduce emissions, which has not been thoroughly tested with biodiesels. Poultry fat is chosen because of its sustainability characteristics, ease of availability, and high yields of oil to produce biodiesel. To conduct this study, the engine is instrumented with sensors and data acquisition equipment and tested using a dynamometer. Data from both the biodiesel blends and the low sulfur diesel is collected from running the engine at 100% full power for increments of 200 rpm in speed; 2,000-2,600 rpm. NOx emissions vary according to different engine parameters, but overall efficiency is maintained around 31%. Fuel consumption increases by 7-12% depending upon speed and fuel blend, but desired power is maintained with no engine damage or modifications.
Author: Society of Automotive Engineers
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 154
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Book Description
Author: Shubha Kartik Veeramachineni
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 198
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Book Description
Author: Semakula Maroa
Publisher: Springer Nature
ISBN: 3030511669
Category : Technology & Engineering
Languages : en
Pages : 152
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Book Description
This book focuses on biodiesel combustion, including biodiesel performance, emissions and control. It brings together a range of international research in combustion studies in order to offer a comprehensive resource for researchers, students and academics alike. The book begins with an introduction to biodiesel combustion, followed by a discussion of NOx formation routes. It then addresses biodiesel production processes and oil feedstocks in detail, discusses the physiochemical properties of biodiesel, and explores the benefits and drawbacks of these properties. Factors influencing the formation of emissions, including NOx emissions, are also dealt with thoroughly. Lastly, the book discusses the mechanisms of pollution and different approaches used to reduce pollutants in connection with biodiesel. Each approach is considered in detail, and diagrams are provided to illustrate the points in line with industry standard control mechanisms.
Author: Belachew Chekene Tesfa
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The stringent emission laws, the depletion of petroleum reserves and the relation of fuels with politics have forced the world to find alternatives to fossil fuels. Biodiesel is one of the biofuels which is renewable and environmentally friendly and can be used in diesel engines with little or no modifications. For the last two decades, many researchers have reported extensive work on the performance and emission characteristics of engines running with biodiesel during steady state operation. However, there are numbers of knowledge gaps that have been identified which include limited information on biodiesel physio-chemical properties and their effects on combustion behaviour and performance and emission characteristics of the engine. In this study after an exhaustive literature review, the following four research areas have been identified and investigated extensively using available numerical and experimental means. The initial focus was to investigate the most important properties of biodiesel such as density, viscosity and lower heating value using experimental and numerical techniques. The effects of biodiesel blend content on the physical properties were analysed. For each property, prediction models were developed and compared with current models available in literature. New density and viscosity prediction models were developed by considering the combined effect of biodiesel content and temperature. All the empirical models have showed a fair degree of accuracy in estimating the physical properties of biodiesel in comparison to the experimental results. Finally, the effects of density and viscosity on the fuel supply system were investigated. This system includes the fuel filter, fuel pump and the engine combustion chamber in which air-fuel mixing behaviour was studied numerically. These models can be used to understand the effects of changes in the physical properties of the fuel on the fuel supply system. In addition, the fuel supply system analysis can be carried out during the design stage of fuel pump, fuel filter and injection system. The second research objective was the investigation into a CI engine?s combustion characteristics as well as performance and emissions characteristics under both the steady and transient conditions when fuelled with biodiesel blends. The effects of biodiesel content on the CI engine?s in-cylinder pressure, brake specific fuel consumption, thermal efficiency and emissions (CO2, NOx, CO, THC) were evaluated based on experimental results. It has been seen that the CI engine running with the biodiesel resulted in acceptable engine performance as well as reduction in main emissions (except NOx). Following this study, a detailed analysis on the transient performance and emission output of the CI engine has been carried out. During this analysis, the emission changing rate is investigated during speed transient and torque transition stages. Further to this, a transient emission prediction model has been developed using associated steady and transient emission data. The model has been shown to predict the transient emission reasonably accurately. The third research objective was to develop a method for on-line measurement of NOx emission. For this purpose the in-cylinder pressure generated within a CI engine has been measured experimentally along with mass air flow and these parameters have been used in the development of a NOx prediction model. This model has been validated using experimental data obtained from a NOx emission analyzer. The predicted data obtained from NOx prediction model has been compared with measured data and has shown that the deviation is within acceptable range. The final research objective was to develop a simple, reliable and low-cost novel method to reduce the NOx emission of the CI engine when using biodiesel blends. A potential solution to this problem has been found to be in the form of direct water injection which has shown to be capable to reduce NOx emission. Using a water injection technique, the performance and emission(NOx and CO) characteristics of a CI engine fuelled with biodiesel has been investigated at varying water injection flow rates. Intake manifold water injection reduces NOx emission by up to 40% over the entire operating range without compromising the performance characteristics of the CI engine.
Author: Freddie L. Inambao
Publisher: BoD – Books on Demand
ISBN: 1803557869
Category : Technology & Engineering
Languages : en
Pages : 266
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Book Description
Diesel Engines and Biodiesel Engines Technologies explores the conceptual and methodological approaches for the understanding of both diesel engines and biodiesel technologies. The book incorporates reviews of the most significant research findings in both diesel and biodiesel engine production and utilization. It presents technological interventions in biodiesel production and offers a foresight analysis of the perspectives of biodiesel as a future global commodity. It also examines the main challenges that biodiesel will have to overcome in order to play a key role in future energy systems. Furthermore, the book discusses alternative diesel fuels from oils and fats and proposes solutions to issues associated with biodiesel feedstocks, production issues, quality control, viscosity, stability, applications, emissions, and other environmental impacts.
